//居中
.containCenter {
  display: flex;
  justify-content: center;
  align-items: center;
}
//多余部分省略
.setEllipsis(@a) {
  text-overflow: ellipsis;
  overflow: hidden;
  display: -webkit-box;
  word-break: break-all;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: @a;
}
//清除浮动
.clearfix {
  &:before,
  &:after {
    display: table;
    content: ' ';
  }
  &:after {
    clear: both;
  }
}